lipoic acid

noun

li·​po·​ic acid lī-ˈpō-ik- How to pronounce lipoic acid (audio) li- How to pronounce lipoic acid (audio)
: any of several microbial growth factors
especially : a fatty acid C8H14O2S2 that is essential for the oxidation of alpha-keto acids (such as pyruvic acid) in metabolism

Examples of lipoic acid in a Sentence

Recent Examples on the Web Peptides and alpha-lipoic acid are among the ingredients that help lift and tighten the delicate skin on your neck, while niacinamide and vitamin C work to brighten dark spots. Ava Darrin, ELLE, 16 Nov. 2022 High doses of ascorbic acid, L-ascorbic acid, or alpha-lipoic acid: These acid forms of vitamin C can increase skin sensitivity. Renée Rouleau, refinery29.com, 28 Jan. 2022 Additional ingredients like CoQ10, alpha-lipoic acid, vitamin C and organic plant extracts help brighten skin. oregonlive, 14 May 2020 First up are the Strawberry Rosé Complete Cleansing Towelettes, which deposit alpha lipoic acid (from the titular strawberries) and vitamin C onto skin while fully removing makeup — even the most stubborn waterproof varieties. Marci Robin, Allure, 24 Oct. 2019 The latter helps regular blood sugar and insulin levels.. Brussels sprouts also contain an antioxidant called alpha-lipoic acid that’s been studied for its potential ability to help improve insulin function. Cynthia Sass, Mph, Health.com, 9 July 2019 There is willow bark extract which decongests the skin and tightens pores, as well as alpha-lipoic acid to give skin a bright, healthy glow. Micaela English, Town & Country, 18 Mar. 2015 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'lipoic acid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

lip-, lipo-

First Known Use

circa 1951, in the meaning defined above

Time Traveler
The first known use of lipoic acid was circa 1951

Dictionary Entries Near lipoic acid

Cite this Entry

“Lipoic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lipoic%20acid. Accessed 2 Mar. 2024.

Medical Definition

lipoic acid

noun
li·​po·​ic acid li-ˌpō-ik- How to pronounce lipoic acid (audio) lī- How to pronounce lipoic acid (audio)
: any of several microbial growth factors
especially : a crystalline compound C8H14O2S2 that is essential for the oxidation of alpha-keto acids (as pyruvic acid) in metabolism

called also protogen

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